code: def _maybe_create_topic_and_replication(self, party, topic_suffix):
      if self._mode == "replication":
          return self._create_topic_by_replication_mode(
              party, topic_suffix
          )
  
      if self._mode == "client":
          return self._create_topic_by_client_mode(party, topic_suffix)
  
      raise ValueError("mode={self._mode} is not support!")
  
imports: import json
  from logging import getLogger
  from typing import List, Optional
  from fate.arch.federation.api import PartyMeta
  from fate.arch.federation.message_queue import MessageQueueBasedFederation, Party
  from ._mq_channel import MQChannel
  from ._rabbit_manager import RabbitManager
label_desc: Use image node_id 6 for calling the RabbitmqFederation obj's underlying member method code with example usage: obj._maybe_create_topic_and_replication(party, topic_suffix) and returns: self, self